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Because John races only at high rpm, he has the luxury of configuring his engine’s air path strictly for high-rpm power. The first step was fitting the larger single-blade throttle body from FRPP. This also meant grinding out the throttle-body mounting pad to a single large oval matching the new throttle body. Other grinding was involved in port-matching all the mating surfaces in the inlet tract. IMRC delete plates were also used. View Related Article
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